My system runs perfectly fine, but I noticed that udev was not installed. So I tried running yay -S udev and that seemed to install systemD, which got a bunch of errors and warnings along the installation. Very unexpected coming from such a foundational package. Here is the output from yay -S systemd (there is some german in there, but only at the not so important places)

:: Installation fortsetzen? [J/n] j (1/1) Schlüssel im Schlüsselbund werden geprüft [####################################################################] 100% (1/1) Paket-Integrität wird überprüft [####################################################################] 100% (1/1) Paket-Dateien werden geladen [####################################################################] 100% (1/1) Auf Dateikonflikte wird geprüft [####################################################################] 100% (1/1) Verfügbarer Festplattenspeicher wird ermittelt [####################################################################] 100% :: Pre-transaction-Hooks werden gestartet … (1/1) Creating Timeshift snapshot before upgrade... ==> skipping timeshift-autosnap due skipRsyncAutosnap in /etc/timeshift-autosnap.conf set to TRUE. :: Paketänderungen werden verarbeitet … (1/1) Reinstalliert wird systemd [####################################################################] 100% :: Post-transaction-Hooks werden gestartet … ( 1/10) Creating system user accounts... ( 2/10) Updating journal message catalog... ( 3/10) Reloading system manager configuration... ( 4/10) Updating udev hardware database... ( 5/10) Applying kernel sysctl settings... ( 6/10) Creating temporary files... ( 7/10) Reloading device manager configuration... ( 8/10) Arming ConditionNeedsUpdate... ( 9/10) Updating linux initcpios... ==> Building image from preset: /etc/mkinitcpio.d/linux414.preset: 'default' ==> Using configuration file: '/etc/mkinitcpio.conf' -> -k /boot/vmlinuz-4.14-x86_64 -c /etc/mkinitcpio.conf -g /boot/initramfs-4.14-x86_64.img ==> Starting build: '4.14.280-1-MANJARO' -> Running build hook: [base] -> Running build hook: [udev] -> Running build hook: [autodetect] -> Running build hook: [modconf] -> Running build hook: [block] -> Running build hook: [keyboard] -> Running build hook: [keymap] -> Running build hook: [consolefont] ==> WARNING: consolefont: no font found in configuration -> Running build hook: [filesystems] -> Running build hook: [fsck] ==> Generating module dependencies ==> ERROR: file not found: '/lib/modules/4.14.280-1-MANJARO/modules.builtin.modinfo' depmod: WARNING: could not open modules.builtin.modinfo at /tmp/mkinitcpio.d1yVxw/root/lib/modules/4.14.280-1-MANJARO: No such file or directory ==> Creating gzip-compressed initcpio image: '/boot/initramfs-4.14-x86_64.img' ==> WARNING: errors were encountered during the build. The image may not be complete. ==> Building image from preset: /etc/mkinitcpio.d/linux414.preset: 'fallback' ==> Using configuration file: '/etc/mkinitcpio.conf' -> -k /boot/vmlinuz-4.14-x86_64 -c /etc/mkinitcpio.conf -g /boot/initramfs-4.14-x86_64-fallback.img -S autodetect ==> Starting build: '4.14.280-1-MANJARO' -> Running build hook: [base] -> Running build hook: [udev] -> Running build hook: [modconf] -> Running build hook: [block] ==> WARNING: Possibly missing firmware for module: 'qed' ==> WARNING: Possibly missing firmware for module: 'qla1280' ==> WARNING: Possibly missing firmware for module: 'qla2xxx' ==> WARNING: Possibly missing firmware for module: 'bfa' -> Running build hook: [keyboard] -> Running build hook: [keymap] -> Running build hook: [consolefont] ==> WARNING: consolefont: no font found in configuration -> Running build hook: [filesystems] -> Running build hook: [fsck] ==> Generating module dependencies ==> ERROR: file not found: '/lib/modules/4.14.280-1-MANJARO/modules.builtin.modinfo' depmod: WARNING: could not open modules.builtin.modinfo at /tmp/mkinitcpio.eoiCZc/root/lib/modules/4.14.280-1-MANJARO: No such file or directory ==> Creating gzip-compressed initcpio image: '/boot/initramfs-4.14-x86_64-fallback.img' ==> WARNING: errors were encountered during the build. The image may not be complete. ==> Building image from preset: /etc/mkinitcpio.d/linux515.preset: 'default' ==> Using configuration file: '/etc/mkinitcpio.conf' -> -k /boot/vmlinuz-5.15-x86_64 -c /etc/mkinitcpio.conf -g /boot/initramfs-5.15-x86_64.img ==> Starting build: '5.15.125-1-MANJARO' -> Running build hook: [base] -> Running build hook: [udev] -> Running build hook: [autodetect] sort: Lesen unmöglich: '/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/uevent': Datei oder Verzeichnis nicht gefunden modprobe: ERROR: missing parameters. See -h. -> Running build hook: [modconf] -> Running build hook: [block] -> Running build hook: [keyboard] -> Running build hook: [keymap] -> Running build hook: [consolefont] ==> WARNING: consolefont: no font found in configuration -> Running build hook: [filesystems] -> Running build hook: [fsck] ==> Generating module dependencies ==> Creating gzip-compressed initcpio image: '/boot/initramfs-5.15-x86_64.img' ==> Image generation successful ==> Building image from preset: /etc/mkinitcpio.d/linux515.preset: 'fallback' ==> Using configuration file: '/etc/mkinitcpio.conf' -> -k /boot/vmlinuz-5.15-x86_64 -c /etc/mkinitcpio.conf -g /boot/initramfs-5.15-x86_64-fallback.img -S autodetect ==> Starting build: '5.15.125-1-MANJARO' -> Running build hook: [base] -> Running build hook: [udev] -> Running build hook: [modconf] -> Running build hook: [block] ==> WARNING: Possibly missing firmware for module: 'qed' ==> WARNING: Possibly missing firmware for module: 'qla1280' ==> WARNING: Possibly missing firmware for module: 'qla2xxx' ==> WARNING: Possibly missing firmware for module: 'bfa' -> Running build hook: [keyboard] -> Running build hook: [keymap] -> Running build hook: [consolefont] ==> WARNING: consolefont: no font found in configuration -> Running build hook: [filesystems] -> Running build hook: [fsck] ==> Generating module dependencies ==> Creating gzip-compressed initcpio image: '/boot/initramfs-5.15-x86_64-fallback.img' ==> Image generation successful Fehler: Befehl konnte nicht korrekt ausgeführt werden (10/10) Reloading system bus configuration...

Does anyone have any idea on what is going wrong here?

The actual reason I even noticed that udev was missing, was me trying to connect my phone to the laptop for game developement in Godot. One can send the game directly to the phone via usb, but the phone didn’t even show up, so that’s how I noticed there was something off.